- "expressed by the given STRING. RADIX must be an exact integer,\n"
- "either 2, 8, 10, or 16. If supplied, RADIX is a default radix\n"
- "that may be overridden by an explicit radix prefix in STRING\n"
- "(e.g. \"#o177\"). If RADIX is not supplied, then the default\n"
- "radix is 10. If string is not a syntactically valid notation\n"
- "for a number, then `string->number' returns #f. (r5rs)")
+ "expressed by the given @var{string}. @var{radix} must be an\n"
+ "exact integer, either 2, 8, 10, or 16. If supplied, @var{RADIX}\n"
+ "is a default radix that may be overridden by an explicit\n"
+ "radix prefix in @var{string} (e.g. \"#o177\"). If @var{radix}\n"
+ "is not supplied, then the default radix is 10. If string is\n"
+ "not a syntactically valid notation for a number, then\n"
+ "@code{string->number} returns @code{#f}. (r5rs)")